Normally Job Administration SMS broadcasts will contain an $sms_body command to supply the message text.  Individual lines of text can also be supplied on $sms_text commands.  This text is always pre-processed at transmit time to expand variables, which should be introduced (by default) with the accent grave character (`).

The destination telephone number is given on an $sms_phone command from a list column.  In most cases, you will also need to define SMS_ variables which will be specific to the SMS provider used.

For details of setting up SMS transmissions, see Sending SMS Messages.